Dissertation/Thesis Abstract

The effects of vibronic coupling on the photophysics of excitons and polarons in ordered and disordered π-conjugated molecular aggregates
by Pochas, Christopher, Ph.D., Temple University, 2014, 182; 3703079
Abstract (Summary)

A theoretical model describing photophysics of π-conjugated aggregates, such as molecular crystals and polymer thin films, is developed. A Holstein-like Hamiltonian expressed with a multi-particle basis set is used to evaluate absorption and photoluminescence (PL) spectra of neutral excitons as well as charge modulation spectra (CMS) and transient absorption spectra (TAS) of positively charges hole-type polarons. The results are used to develop a better theoretical understanding of the organic electronics being studied and their photophysics, and also to probe the morphology of poly(3-hexylthiophene) (P3HT) thin films, which are used in photovoltaic devices.

Indexing (document details)
Advisor: Spano, Frank C.
Commitee: Burkhardt, Theodore, Matsika, Spiridoula, Voelz, Vincent
School: Temple University
Department: Chemistry
School Location: United States -- Pennsylvania
Source: DAI-B 76/09(E), Dissertation Abstracts International
Subjects: Physical chemistry
Keywords: Aggregates, Organic electronics, Photophysics, Photovolatic, Solar
Publication Number: 3703079
ISBN: 9781321747072
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